All the Organization members should have access to assign the issues to themself

[asifdxtreme]

Issue/Feature Description: Currently Org members doesn't have privilige to assign the issue to themself or add labels or add issues to project.

Why this issue to fixed / feature is needed(give scenarios or use cases): All the Organization member should have privilege for the below actions : [Only applicable to Org members]

• [ ] assign issue to themself or to someone else.
• [ ] add labels to issue or PR
• [ ] add issue to a project
• [ ] add issue to a milestone
• [ ] request reviewers for their PR's